OwlPin

Grammarly

An AI writing assistant that works inside email, docs and social apps, catching errors and adjusting tone in every client message you send.

FreemiumSoftwareClient Communication
Visit GrammarlyFree spelling and grammar checks; paid adds rewrites and tone suggestions

What it is

A browser extension, desktop app and keyboard that checks and rewrites your writing wherever you type. The company behind it is now called Superhuman; the product keeps the Grammarly name.

Best for

Coaches who write a lot of client messages, especially in a second language. It catches the typo in a welcome email before a new client does.

Watch out for

Accept its rewrites and your messages start to sound like everyone else's. Use it as a proofreader, and keep your own voice for the actual coaching.

Alternatives & neighbours

Other client communication options worth comparing.

Claude

Software

An AI assistant coaches use for the writing half of the job — drafting check-in emails, reworking a programme explanation, turning notes into client-ready text.

ChatGPT

Software

The most widely used AI assistant — for drafting client emails, brainstorming session plans and turning messy notes into something a client can read.

Kit (formerly ConvertKit)

Client Communication

Email marketing built for creators — welcome sequences, tagging and broadcasts, which covers both your onboarding emails and your newsletter.